Hydrocarbon-burner.



A. G. SHERMAN.

HYDROOARBON BURNER. APPI IUATION FILED JULY 15, 1911.

1,024,868. Patented Apr. 30, 1912.

2 SHEETSSHEET 1.

| 1 "II P IZVVENTOR.

BY pan/Wm ATTORNEY.

A. G. SHERMAN.

' IHYDROUARBON BURNER. APPLIUATIOIT FILED JULY 15, 1911.

1,024,868. 4v Patented Apr. 30, 912.

2 SEEMS-SHEET 2.

FIG. Z.

ALVIN G. SHERMAN, OF DETROIT, MICHIGAN.

HYDROCARBON-BURNER.

Specification of Izetters Patent.

Application filed July 15, 1911. Serial No. 638,618.

To all whom itmay concern:

Be it known that I, ALVIN G. SHERMAN, a

citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have inventeda certain new and. useful Improvement in Hydrocarbon-Burners, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to hydro-carbon burners.

It has for its object an attachment to hydro-carbon burners adapted to heat a combustible fluid that is fed into an open trough, converting the fluid into a vapor and burning the vapor above the trough in which the liquid fuel is originally received, the object of the attachment being to produce an initial heating of the trough in which the principal liquid fuel is received from the feed pipe through which the fuel is conveyed from its tank to its place of combustion.

With heavy hydro-carbon the starting of combustion is attended with considerable difficulty, and frequently with the production of much ofi'ensive smoky vapor that escapes from the burner before complete combustion is established. The heavier hydro-carbons area desirable fuel, both on the ground of safety and on the ground of economy, but they have hitherto been objectionable, although used to a large extent, because of the difliculty of starting and the objectionable vapors or emanations that escape from them before combustion is completely established. By producing a burner which has an attachment by means of which the main fuel receptacle is heated before the fuel for combustion is admitted to it these difficulties are overcome.

In the drawings :Figi1re 1, shows a section of the burner and attachment. Fig. 2, is a plan view of the burner.

The common construction of burner for heavy hydro-carbon, an oil like kerosene, is seen in the part. of Fig. 1 which is shown in immediate connection with the feed pipe 1 and which comprises a trough-like base of two concentric circular troughs 2 and 3 connected by communicating passages These receive liquid fuel through the pipe 1 from any convenient source of supply which is regulated by the needle valve in the casing 5, which controls the passage of the fuel from the main pipe 11 to the individual feed pipe -1. The troughs are surmounted by tubes that are provided with air passages 6 through which air is admitted from outside the burner to the combustion chamber 7 that lies immediately over the trough 2 and to the similar combustion chamber 8 that hes immediately over the trough 3. These parts are of ordinary and common construction very extensively in use at the present time. They are extremely satisfactory for burning the lighter hydro-carbon oils, but

are objectionable when used for heavier hydro-carbon oils for the reason stated. To obviate the objections a set of trough structures comprising concentric troughs 12 and 13, united by passages 14 is suspended below the troughs 2 and 3, separated sufliciently to give to the fuel which is to be fed into them an abundant supply of air for combustion, and a sufficient space for the full play of flames which will rise from the surface of the fuel in the troughs 12 and 13. A supply pipe 15 leads into the troughs and terminates at its outer end which is properly elevated above the troughs with a small funnel-like receptacle 16 into which may be poured a supply of light hydro-carbon. For such a purpose light hydro-carbons preferably are used.

Patented Apr. 30, 1912.

No valve in pipe 15 or in the' receptacle I 16 is necessary because the supply of fuel furnished to the auxiliary or starting troughs 12 and 13 is small and is supplied in a single quantity which is usually definite arid established and need not be continuously furnished. The needle valve in the main supply pipe controlled by hand wheel 9 is kept closed until the supply of light hydro-carbon furnished to the troughs l2 and 13 has been exhausted or nearly exhausted, and when this has occurred and the troughs 2 and 3 are sufliciently heated to produce a quick and immediate vaporization of the heavier hydro-carbon admitted to them the valve is opened, the supply of heavier hydro-carbon admitted to the burners 2 and 3 and lighted. If the admission is properly timed with respect to the 'exhaustion of the fuel in the lower troughs the ignition of the heavier oil takes place from the as yet unextinguished fire in the lower troughs, but should the fire in the lower troughs become extinguished the vap r 0f the heavier oil is at once ignited upon the application of the flame of a match.

lVhatI claim is 1. A heavy hydro-carbon heater, having in combination a burner formed of concentric circular channels comparatively Well spaced to afford ample air spaces, and a sub-burner formed of concentric circular channels comparativelywell spaced to afford ample air spaces and located in substantial registry below the channels of the upper burner so that the flames of the sub-burner channels will register with the surfaces of the channels above, substantially as described.

2. A heavy hydro-earhon heater, having in combination, a burner havinga ringshaped open channel, the diameter of the inclosed circular air space being comparatively large with respect to the channel width to afford ample air for combustion, a

fuel pipe adapted to deliver fuel to said channel, a valve for controlling the fuel pipe, a ring-shaped starting burner located under said first mentioned burner and in- 25 closing a circular air space comparatively large with respect to the width of the ring of the burner, the said starting burner being in substantial registry with 'the upper;v

burner, whereby the flame of the "starting 30 ALVIN e. SHERMAN. Witnesses v CHARLES F. BURrr'oN, VIRGINIA C. SPR rr. 

